# HSE ARM vs SoloEcho

The clearest difference is in-app purchases: HSE ARM at none against SoloEcho's 1. HSE ARM also leads on iOS requirement (13.0 vs 18.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. SoloEcho sells 1 one-off in-app purchase. HSE ARM asks for nothing beyond the download.

HSE ARM ships an update every 2 months, SoloEcho every 5 weeks. The most recent releases landed on September 19, 2026 and August 22, 2026 respectively.

## The numbers

| Metric | HSE ARM | SoloEcho |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Size | 76 MB | 5 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Umbrella (Shenzhen) Intelligent Technology Co., Ltd](https://appshunter.io/developer/1749467709) | [恒俭 董](https://appshunter.io/developer/947356968) |

## What reviewers say

### HSE ARM

[App page](https://appshunter.io/ios/app/hse-arm/id6503601206)

**Features:** macOS Compatibility

**In-app purchases:** none


### SoloEcho

[App page](https://appshunter.io/ios/app/soloecho/id6760158629)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Lifetime | $1.99 | one-time |


## Frequently asked questions

### Is HSE ARM free?

HSE ARM is free to download, with no in-app purchases.

### Is SoloEcho free?

SoloEcho is free to download, with in-app purchases available.

### Do HSE ARM or SoloEcho have ads?

Neither HSE ARM nor SoloEcho shows ads.

### Which is updated more often, HSE ARM or SoloEcho?

HSE ARM ships an update every 2 months, and SoloEcho every 5 weeks. Most recently, HSE ARM was updated on September 19, 2026 and SoloEcho on August 22, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*